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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mengyuan Yu Deshang Sha Zhiqiang Guo Xiaozhong Liao |
| Copyright Year | 2014 |
| Description | Author affiliation: Sch. of Autom., Beijing Inst. of Technol., Beijing, China (Mengyuan Yu; Deshang Sha; Zhiqiang Guo; Xiaozhong Liao) |
| Abstract | A hybrid phase shifted full bridge (PSFB) and LLC half bridge (HB) dc-dc converter for low-voltage and high-current output applications is proposed in this paper. The PSFB shares its lagging leg with the LLC-HB and their outputs are parallel connected. When the output current is small, the energy of LLC circuit in combination with the energy stored in the leakage inductance of PSFB's transformer can help the lagging leg switches to realize ZVS turn on, which can reduce voltage stress and avoid annoying voltage spikes over switches. For the power distribution at rated load, the PSFB converter undergoes most of the power while the LLC-HB converter working as an auxiliary part converts only a small portion of the total power. To improve the conversion efficiency, synchronous rectification technique for the PSFB dc-dc converter is implemented. The design principle is given in view of ZVS for lagging leg switches and low transconductance of LLC converter. The validity of the proposed converter has been verified by experimental results of a 2.5kW prototype. |
| Sponsorship | IEEE Power Electron. Soc. |
| Starting Page | 1088 |
| Ending Page | 1094 |
| File Size | 1941918 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781479923250 |
| DOI | 10.1109/APEC.2014.6803442 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-03-16 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Zero voltage switching Switches Rectifiers Transconductance Inductors Capacitors Bridge circuits |
| Content Type | Text |
| Resource Type | Article |
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